L-base to start, with the flyer standing at the base's feet, facing away from the base.
The flyer leans back, bringing the sacrum to the base's feet and the shoulders to the base's hands.
The flyer brings the legs up and over the hips until they find a straddled position with the thighs on the base's feet.
To exit, the base lifts the tailbone to bring the flyer's hips over their head until the flyer's feet touch the ground.
Form tips
When sliding from the back to the front of the flyer's thighs, the base can point the toes outward and keep the toes in contact with the flyer's hips.
When landing on the front of the flyer's thighs, the base can point the toes slightly inward and engage the inner thighs ( Hip adductors ) to keep the legs strong.